Will give Brainliest need help asap
A circle has an area of approximately 78.5 square units. If the center of the circle is at Left-parenthesis 2 comma 4 right-parenthesis. Which of the following points is on the circle? A. Left-parenthesis negative 6 comma 4 right-parenthesis B. Left-parenthesis 2 comma negative 1 right-parenthesis C. Left-parenthesis negative 4 comma negative 4 right-parenthesis D. Left-parenthesis 2 comma negative 9 right-parenthesis
Answer:
The answer is (2, -1)
Step-by-step explanation:
The area of the circle is:
A = r²π
We know
A = 78.5
π = 3.14
78.5 = r² * 3.14
r² = 78.5 : 3.15
r² = 25
r = √25 = 5
The standard form equation of a circle is:
(x - h)² + (y - k)² = r²
We have:
(2, 4)
⇒ h = 2
k = 4
r = 5
(x - h)² + (y - k)² = r²
(x - 2)² + (y - 4)² = 5²
(x - 2)² + (y - 4)² = 25
Now, let's substitute all choices:
(-6, 4):
(-6 - 2)² + (2 - 4)² = 25
(-8)² + (-2)² = 25
64 + 4 = 25
68 = 25
Wrong
(2, -1)
(2 - 2)² + (-1 -4)² = 25
0² + (-5)² = 25
0 + 25 = 25
25 = 25
Right
Hope this helps :p
Answer:
(2, -1)
Step-by-step explanation:
same test
Johnny is 5 years younger than 3 times the age of Johnson, please write an expression for Johnny's age. If Johnson is 4 years old, how old is Johnny?
Answer:
Johnny is 7
Step-by-step explanation:
multiply 4 by 3 as johnny is 5 years younger then 3 times the age of Johnson and Johnson is 4 so we get 12 then we subtract 5 and get 7
3(x-4)+5x=9-36 what property is this
Answer:
you would use distributive property to distribute 3 to x and -4
Step-by-step explanation:
Answer:
Exact Form:
x= −15/8
Decimal Form:
x=− 1.875
Mixed Number Form:
x= -1(7)/(8)
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
What is 7.50x12 please lol
Answer:
90
Step-by-step explanation:
angela had a fully charged laptop
Oh that's cool... what do i do?
ITS DUE TODAY PLS HELP!!! ILL GIVE BRAINLIEST.
Tom performs a dilation of ⅓ on a triangle. He then classifies the image and pre-image as being congruent. Is Tom correct? Why or why not? Explain you answer down below.
Answer: Tom is incorrect.
Step-by-step explanation: Congruent is defined as having exactly the same angle measurements and exactly the same side lengths.
In the 1/3 dilation, the angles will remain the same, but all the sides will be shorter, 1/3 the lengths of the original image. The image and pre-image are not congruent. They are similar.
The figure below is made of 2 rectangles.
What is the area of the figure?
Answer:
should be 8
Step-by-step explanation:
(04.03 MC)
Explain how System 1 becomes equivalent to System 2.
System 1:
Ax + By = C
Lx + My = N
System 2:
Ax + By = C
(A − L)x + (B − M)y = C − N
Answer:
system 2
Step-by-step explanation:
hope it helps!!!!!!
How much money is shown?
Answer:
55 cents
Step-by-step explanation:
Answer: 55 cents.
Step-by-step explanation:
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
kEEP ON ADDING 1 TO EACH END
Step-by-step explanation:
What is the slope of the line?
Answer:-10
Step-by-step
900-800 over 0-10
100/-10
) 760,600 ? 276,665
2) 157,048 ? 200,390
3) 941,935 ? 692,126
4) 158,751 ? 271,694
5) 287,707 ? 222,336
6) 258,427 ? 923,230
7) 337,641 ? 295,754
8) 471,321 ? 175,972
9)177,648 ? 739,835
10) 553,694 ? 764,198
11) 106,070 ? 675,234
12) 340,086 ? 963,634
13) 307,922 ? 352,418
14) 656,364 ? 483 ,297
15) 382 ,906 ? 567,043
16) 275,045 ? 595,992
17) 604,480 ? 397,985
18) 855,305 ? 255,763
19) 240,821 ? 750,410
20) 796,362 ? 189,596
21) 708,935 ? 965,034
22) 694,927 ? 669,356
23) 121,011 ? 690,670
24) 691,521 ? 581,105
25) 582,781 ? 317,563
26) 587,231 ? 925,208
27) 574,816 ? 851,542
28) 766,258 ? 412,955
Answer:
wth i've never seen this shi
Plz help need answers quickly I have not so long
Answer: $10
Step-by-step explanation:
$4/40 golf balls = $1/10 golf balls
$1/10 = x/100, x=100/10, x=$10
Answer:
It is $10 dollars, so the person that answered before got it right
Step-by-step explanation:
$4 x
_____________
40 100
40x= 400
x=10
Find the value of x for which the lines a and b are parallel.
An image of two lines and a transversal.
Question 11 options:
20
2
23
19
Answer:
x = 19
Step-by-step explanation:
148 and 7x+15 are alternate interior angles and alternate interior angles are equal when the lines are parallel
148 = 7x+15
Subtract 15 from each side
148-15 = 7x+15-15
133 =7x
Divide each side by 7
133/7 =7x/7
19=x
will give brainliest if right
Answer:
The line should have a negative slope.
Step-by-step explanation:
The perimeter of the rectangle below is
118 units. Find the length of side AB
.
This a question about perimeter and equation, let's see how to solve that:
The perimeter of a rectangle is the sum of its 4 sides. In this case, we know that the perimeter is 118. We can do an equation with these datas:
[tex]\boxed{AB + BC + CD + DA = 118}[/tex]
We also know other informations: the side AB is equal to [tex]4y+3[/tex] and de side BC is equal to 3y. In a recltangle, parallels sides have the same value. So, the side CD is equal to [tex]4y+3[/tex] and the side DA is equal to 3y.
Now, we have these datas:
[tex]AB + BC + CD + DA = 118\\\\AB = CD = 4y + 3\\BC = DA = 3y[/tex]
Let's do and solve an equation:
[tex]AB + BC + CD + DA = 118\\\\4y+3 + 3y + 4y+3 + 3y = 118\\14y + 6 = 118\\14y = 118 - 6\\14y = 112\\y = \frac{112}{14} \\y = 8[/tex]
So, the value of y is 8. Let's replace the value of y in the side AB:
[tex]4y + 3\\4\times 8 + 3 = 35[/tex]
Therefore, the length of side AB is 35.
3(2-4x)=-30 with justfity steps
Answer:
x = 3
Step-by-step explanation:
3(2 - 4x) = -30
=>6 - 12x = -30
=> 12x = 36
=> x = 3
find the slope of a line that passes through (-12,-8) and (-15,22)
Answer:
M=-10
Step-by-step explanation:
Kevin has these shirts in his closet.
3 blue shirts
5 red shirts
3 purple shirts
4 white shirts
Kevin will randomly choose one shirt. Then, he will put it back and randomly choose another
shirt. What is the probability that he will choose a red shirt and then a white shirt?
Answer:
5 4 3 2 1
Step-by-step explanation:
Answer:
9/15
Step-by-step explanation:
If angle ABD is 90 degrees. Select all of the angles that measure 42 degrees.
Angle 1
Angle 2
Angle 3
Angle 4
Angle 5
Answer:
Measure of angle 2 and angle 4 is 42°.
Step-by-step explanation:
From the figure attached,
m∠ABC = 42°
m(∠ABD) = 90°
m(∠ABD) = m(∠ABC) + m(∠DBC)
90° = 43° + m(∠DBC)
m(∠DBC) = 90 - 43 = 47°
Since ∠ABC ≅ ∠4 [Vertical angles]
m∠ABC = m∠4 = 42°
Since, m∠3 + m∠4 = 90° [Complimentary angles]
m∠3 + 42° = 90°
m∠3 = 90° - 42°
= 48°
Since, ∠5 ≅ ∠3 [Vertical angles]
m∠5 = m∠3 = 48°
m∠3 + m∠2 = 90° [given that m∠2 + m∠3 = 90°]
m∠2 + 48° = 90°
m∠2 = 90 - 48 = 42°
m∠3+ m∠4 = 90° [Since, ∠3 and ∠4 are the complimentary angles]
48° + m∠4 = 90°
m∠4 = 90 - 48 = 42°
Therefore, ∠2 and ∠4 measure 42°.
A scientist builds a Mars rover that can travel 4.9 centimeters per second on flat ground.
If the rover continues at the same rate, how many centimeters will it travel in 1512 seconds?
Enter your answer in the box.
Answer:
7,408.8
Step-by-step explanation:
multiply 4.9 by 1512
Solve the equation. If the equation is an identity, choose identity. If it has no solution, choose no solution. 4(t + 2) = 10
Answer & Step-by-step explanation:
4(t + 2) = 10
4t + 8 = 10
4t = 2
t = 1/2
Hope this helps
A number 1 is at most -5 or at least 0.
Answer:
0
Step-by-step explanation:
14. DECORATING Sabrina is decorating her
bedroom. She has $300 to spend on paint and bed
linens. A gallon of paint costs $14, while a set of bed
linens costs $60.
Answer:
what are you trying to find?
Which series of transformations shows that figures 1 and 2 are similar?
Figure 1 is the preimage. *
sty
7
6
5
AU
2
1
O
3
--7-6-5-4-3 2-1
4 5 6 7 8
-5
-6
-7
-81
о
a dilation of figure 1 with scale factor 12 then a reflection
О
a dilation of figure 1 with scale factor 12 then a translation
a dilation of figure 1 with scale factor 3/2 then a translation
a dilation of figure 1 with scale factor 3/2 then a reflection
Answer:
Option (4)
Step-by-step explanation:
Length of segment between two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by,
d = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
From the figure attached,
Distance between A(0, -3) and B(3, 0) = [tex]\sqrt{(3-0)^2+(0+3)^2}[/tex]
AB = [tex]3\sqrt{2}[/tex]
Distance between A'(-3.5, -4.5) and B'(-8, 0)
Length of A'B' = [tex]\sqrt{(-3.5+8)^2+(-4.5-0)^2}[/tex]
A'B' = [tex]4.5\sqrt{2}[/tex]
Scale factor for dilation = [tex]\frac{4.5\sqrt{2}}{3\sqrt{2}}=1.5[/tex]
Therefore series of transformations will be,
A dilation of figure 1 with scale factor of [tex]\frac{3}{2}[/tex] and then a reflection.
Option (4) will be the answer.
after multiplying,we have a(b plus c)
Answer:
The Distributive Property is easy to remember, if you recall that "multiplication distributes over addition". Formally, they write this property as "a(b + c) = ab + ac". In numbers, this means, for example, that 2(3 + 4) = 2×3 + 2×4.
Step-by-step explanation:
Change 0.000000057 into scientific notation.
Answer:
5.7x10^-8
Step-by-step explanation:
Move the decimal 8 places to the right.
Hope this helps
Simplify the expression. Write your answer as a power. 6^10/6^4
Answer:
46,728.11
Step-by-step explanation:
[tex]6^{10} = 6*6*6*6*6*6*6*6*6*6[/tex]
6 multiplied by itself 10 times is equal to:
60,466,176
[tex]6^4=6*6*6*6[/tex]
6 multiplied by itself 4 times is equal to:
1,296
[tex]60,466,176/1,294 = 46728.11[/tex]
You are a part of a sports team that has at least 5 players but no more than 9 on a team. Your cleats for the team cost $15 each and can be represented by the function f(x)=15x where x is the
number of cleats. What is the range of this scenario?
RANGE:
Answer:
4-1x is the answer, I hope this helps and have good day:)
Step-by-step explanation:
The price of 3 chairs and 4 tables is Rs 7540.What is the price of 1 table if the price of a chair is Rs 220.
Given parameters:
Number of chairs = 3
Number of tables = 4
Cost of 3 chairs and 4 tables = Rs 7540
Price of 1 table = Rs220
Unknown:
Price of 1 table = ?
Solution:
Let the cost of 1 table = t
So,
3(220) + 4(t) = 7540
660 + 4t = 7540
4t = 7540 - 660
4t = 6880
t = Rs. 1720
The cost of 1 table is Rs. 1720